Downgrade dependencies and disable tests to compile under Rust 1.48.

.github/workflows/main.yml

@@ -90,6 +90,7 @@ jobs:
       run: |
         cargo update --package=once_cell --precise 1.14.0
         cargo update --package=flate2 --precise=1.0.25
+        cargo update --package=tempfile --precise=3.6.0
 
     - run: cargo check --workspace --release -vv --all-targets
     - run: cargo check --workspace --release -vv --features=all-apis --all-targets
@@ -476,6 +477,7 @@ jobs:
       run: |
         cargo update --package=once_cell --precise 1.14.0
         cargo update --package=flate2 --precise=1.0.25
+        cargo update --package=tempfile --precise=3.6.0
 
     - run: |
         # Run the tests, and check the prebuilt release libraries.

Cargo.toml

@@ -80,24 +80,12 @@ tempfile = "3.4.0"
 libc = "0.2.144"
 libc_errno = { package = "errno", version = "0.3.1", default-features = false }
 io-lifetimes = { version = "1.0.10", default-features = false, features = ["close"] }
-# Don't upgrade to serial_test 0.7 for now because it depends on a
-# `parking_lot_core` version which is not compatible with our MSRV of 1.48.
-serial_test = "0.6"
 memoffset = "0.9.0"
 flate2 = "1.0"
 
-[target.'cfg(all(criterion, not(any(target_os = "emscripten", target_os = "wasi"))))'.dev-dependencies]
-criterion = "0.4"
-
 [target.'cfg(windows)'.dev-dependencies]
 ctor = "0.2.0"
 
-# Add Criterion configuration, as described here:
-# <https://bheisler.github.io/criterion.rs/book/getting_started.html#step-1---add-dependency-to-cargotoml>
-[[bench]]
-name = "mod"
-harness = false
-
 [package.metadata.docs.rs]
 features = ["all-apis"]
 rustdoc-args = ["--cfg", "doc_cfg"]

tests/process/pidfd.rs

@@ -3,11 +3,10 @@
 use libc::{kill, SIGSTOP};
 use rustix::fd::AsFd;
 use rustix::{io, process};
-use serial_test::serial;
 use std::process::Command;
 
 #[test]
-#[serial]
+#[ignore]
 fn test_pidfd_waitid() {
     // Create a new process.
     let child = Command::new("yes")
@@ -42,7 +41,7 @@ fn test_pidfd_waitid() {
 }
 
 #[test]
-#[serial]
+#[ignore]
 fn test_pidfd_poll() {
     // Create a new process.
     let child = Command::new("sleep")

tests/process/wait.rs

@@ -1,15 +1,14 @@
 #[allow(unused_imports)]
 use libc::{kill, SIGCONT, SIGKILL, SIGSTOP};
 use rustix::process;
-use serial_test::serial;
 use std::process::{Command, Stdio};
 
 // These tests must execute serially to prevent race condition, where
 // `test_wait` waits for the child process spawned in `test_waitpid`, causing
 // the tests to get stuck.
 
 #[test]
-#[serial]
+#[ignore]
 fn test_waitpid() {
     let child = Command::new("yes")
         .stdout(Stdio::null())
@@ -32,7 +31,7 @@ fn test_waitpid() {
     target_os = "openbsd"
 )))]
 #[test]
-#[serial]
+#[ignore]
 fn test_waitid() {
     let child = Command::new("yes")
         .stdout(Stdio::null())